I believe there is concern if it stays in the abdomen or groin that there is no way to check for abnormalities or testicular problems (cancer) and it is actually more prone because it was undescended to begin with. It is meant to be in the scrotum for a reason, temperature especially.
My DH had this as well as our LO. He had the surgery at almost 13mo old (about 10 wks ago). It was very very scary for us as well, but there really wasn't an alternative. Our Ped Uro was also very aloof so it was hard because I wanted him to talk to me more but he was supposedly one of the best so we stayed with him. It was done laproscopic and there is only two tiny scars on his belly (about 1/4 inch each) and they also went through the belly buttom and you cant tell there. Unlike my DH who had this years ago he has a big 4inch scar across his lower abdomen. My LO also has a small incision in the scrotum. He did amazingly well and I didnt have to give him the powerful painkillers. Ibuprofen worked fine.
They let me nurse him up to 3hrs before and I was told prior that they would give him something before going back to operating room to make him droopy, but we were standing there in pre-op (a nervous wreck) and next thing you know the nurse just swooped him up and took him back. He started crying immediately and I just lost it. That was the worst part of it, honestly. They were really great about keeping us updated throughout surgery and let us go back right away when he was done. He had some good nurses taking care of him. He was pretty out of it from anesthesia, which scared me, so we stayed there for about 3hrs after until I felt comfortable enough to leave. They also tried to get us to do a coddle block (sorta like an epidural) for pain mgmt but I did not like that idea and also just another point of entry that could become infected. I am glad I made that decision because he did fine. They do give them a local before coming out of anesthesia so that the pain isnt bad. He slept a lot for the next 48hrs, but other than that maybe a tad cranky and really clingy.
I cant say much to comfort you because I know exactly how you feel, but your LO will be fine and you will feel such a sense of relief after wards. These babies heal so quickly too...its amazing. I truly believe it is harder on us than them. Hang in there mamma and feel free to ask me anything else if you need to.
Oh, wanted to say that LOs testicle was in the abdomen so the surgery took longer than it would if it was in the groin (about 1 1/2 hours). It was non-palpable. If it is in the groin it is much easier and faster surgery.